hambleton



(No Model.) 2 Sheets-Sheet 1.

F. H. HAMBLETON.

GAS PRESSURE GOVERNING APPARATUS.

Patented Apr. 3, 1888.

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(No Model.) 2 SheetsSheet 2.

P. H. HAMBLETON.

. GAS PRESSURE GOVERNING APPARATUS. N0. 380,565. Pa tent'ed Apr. 3,1888.

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UNTTED STATES PATENT mes.

FRANCIS H. HA MBLETON, OF BALTIMORE, MARYLAND.

GAS-PRESSURE=GOVERNING APPARATUS.

BPECIPICATION forming part of Letters Patent No. 380,565, dated.A.pri13,1888.

Application filed November 3, 1887. Serial No. 254,193. (No modcLl tofollowing is a specification.

The accompanying drawings, with their letters of reference, illustratemy invention, of which-- Figure 1 shows a vertical sectional view of theordinary form of governor, float, and

valves, and the apparatus for supplying a counter-pressure of gas uponthe float of the governor. Fig. 2 shows a top or plan View of anactuating device located in one of the gasmains. Fig. 3 is a diagramshowing scalebeam, weight-beam, and transferable weights. Fig. at showsa top view of the apparatus illustrating my invention; Fig. 5, asectional view of one of the weights. Fig. 6 illustrates mechanism anddevices for loading the float by means of a weight.

Viewing Fig. 1, all that part of the apparatus lying to the left andconsisting of the inletmain A outlet-main A, valves a a, with theirvalve-seats, and valve-stem a, communicatingpipe a tank B, and float Bare all well known and in common use. The pressure of gas in the initialside, represented by the inlet-pipe A, is greater than the pressure inthe outlet- The float B is loaded to open the valves 0; c at apredetermined pressure of gas in the outlet-main, so that when thispressure is exceeded the gas flowing from the main A through the tube apasses up and exerts a pressure under the bell-float B, closing thevalves to a and holding them closed until the pressure in the main Alowers sufficiently to be overcome by the load on the float, when thevalves a a open, allowing an increased pressure of gas to flow into themain A to shut them off. When the consumption of gas is increased atcertain hours of the day, an increased pressure in the outlet-main A isdesired in some degree proportional to this consumption. A0-

cording to the present methods, this increased the governor.

pressure is obtained by loading the float B of This load is increaseduntil a pressure in the outlet-main is sufficient to raise the float atsome predetermined point. With an increased consumption there is acorresponding increase in the velocity of the cur rent of gas. Itherefore utilize the current to increase the load upon the float of thegov ernor,' and consequently the pressure in the outlet-mains.

Viewing Fig. 1, the arrow shows the direction of the current flowing inthe main A. Within this main is placed an actuating device made of wood,metal, or other suitable material of any shape or form desired. in thedrawings it is shown in the form of a disk, and is marked a This disk isso placed that the current will impinge upon it and actuate it. It neednot be large enough to fill the annular space of the main, but should beconstructed so that the current may pass by it at the sides or throughapertures in the disk, and actuate it by impinging upon it in passing. Aconvenient way to construct the device is shown in Fig. 1 by enlargingthe main through the line at w and making the device of approximatelythe size of the main. In this way the full strength of the currentoperates upon the device, and has at the same time ample room to passaround its edges. Constructed in this way, the main may be provided withthe guides a a, Figs. 1 and 2, to keep it in position as it travels. Asrepresented in Fig. l, the de vice is at the end ofits downward throw.The highest point reached in its upward movement is approximately at thepoint where the main pipe begins to enlarge.

a is a rod attached to the device, and, as shown in the drawings,extends upwardly through the pipe, and is packed in any suitable mannerto prevent the escape of gas.

a, Fig. 1, illustrates an ordinary watcr sealing box. This form Iprefer, as it presents less friction to the working parts.

Upon a suitable base or frame-work, 0, Figs. 1 and 6, I have erected thestandard 0, which supports scale-beam c, balanced upon the ordinaryknife-edge pivot. One end of the scalebeam is pivoted to the rod a Theother end is forked, as shown in Fig. 4, and provided with a cross-headwhich is pivoted to the rod 0", which connects the beam with the weight0 This weight responds to the movement of the scale-beam, and isimmersed in water placed in the tank 0'. The forked arm of thescale-beam is provided with notches or grooves 0 From the standard 0projects obliquely an arm, 0, and is arranged so that the forked arms ofthe scale-beam may pass one on each side of the arm a This arm is alsoprovided with grooves or notches similar to those on the scale-beam, thepurpose of which will be fully explained hereinafter. From the scalebeamprojects downwardly thearm 0 the end of which is provided with a pointerto indicate the volume of gas passing through the mains. The bed-plate 0supports a governor similar to the one already described, consisting ofthe tank D, float d, valve (1, and rod connecting the valve with thefloat. The valve (1 has its seat in a partition which divides the chestd into two compartments. The pipe d leads from one of these compartmentsto the initial main A, and the pipe (2* leads from the other compartmentto the interior of the tank B of the governor and into the spacesurrounding the float B. The pipe 61 connects the pipe at with the mainA. The pipe d may also be provided'with a gas-burner, d. A standard, E,to which is pivoted the lever 6, forms a track for the wheel 6, which ispropelled-by the lever 0 to which it is connected by the link or rod 6As this wheel rolls upon the lever 6, it exerts more or less pressureupon the governor-float d, according to its position upon the lever.

The weight represented by Fig. 5 I prefer to Construct in the form of acylinder, which may be opened at one or both ends, and supplied withshot, sand, or other material, so as to vary its weight, as desired. Anumber of these cylinders are placed or laid in the notches or groovesin the arm 0, and are picked up by the notches or grooves in the forkedarm of the scale-beam c as that end is elevated, and dropped again intothe grooves on the arm 0 as it descends.

I will now describe the manner in which the devices operate: When theconsumption of gas during the day is at its minimum, the current flowingthrough the main A impinges upon the device a, forcing it down gently,and as the device depresses the end of the scale-beam to which it isconnected the wheel 6 rolls upon the lever e, depressing slightly thefloat d and opening the valve d, allowing the gas which has entered thecompartment below the valve from the initial main A to escape into thecompartment above the valve and through the pipe d into the tank B, andexert a coun-.

ter-pressure upon the float B, which is held up by the gas from the mainA, entering below the floatthrough the pipe a". As the pressure in theinitial main A is greater than that in the supply-n1ain A, thegovernor-float B is loaded to open the valves a a and admit the gas at asomewhat greater pressure into the main A.

While the consumption continues at its minimum, these valvesautomatically open and close, sustaining the pressure at its minimumrate. As the consumption of gasincreases, the current in the main Aflows more rapidly, actuating the device a and forcing it down.

' This movement rolls the wheel 6 farther from the fulcrum of the lever6, adding more weight upon the governor-float d and opening wider thevalve d. This gives an increased weight or load of gas upon the float B.The action continues, varying the pressure as the consumption varies,and regulates the pressure in the supply-mains according to the supply.As the pressure diminishes in the main A, owing to the draft upon it,there must be some means of allowing gas on top of the governor-float toescape. The pipe d which connects the pipe d with the main A, providesan outlet for the gas into that main, if desired. However, the cock inthis main may be closed, and the gas may be allowed to escape and burnat d". As the pressure-flow of gas in the main A increases, the pressureupon the device interposed in the current increases in geometricalratio, so that it is desirable that the scale-beam be actuated and movedapproximately in proportion to this increase. To provide for this, Iplace the adjustably-weighted cylinders in thegrooves upon theprojecting arm a. As the forked end of the scale-beam picks up thesecylinders in its ascent, each weight so picked up represents a weightgreater than its normal value, as its position upon the scale-beamrecedes from its fulcrum. As these cylinders may be increased ordiminished in weight by changing or emptying, the device may be soregulated as to keep pace with the ratio or increase in the velocity ofthe current.

Another device may be used for the same purpose, either separately or inconjunction with the scale-weights-for example, such as represented bythe water-tank a and weight 0, immersed in the water and suspended fromthe end of the scale-beam. It will be seen by this arrangement that asthe weight ascends its value increases in proportion to the diminishedquantity of water displaced. When the two devices are used together, theconstant increase in the weight 0 compensates for the period which wouldotherwise elapse when the scale-beam is passing from one of the adjustable weights to another.

Instead of a supply of gas to load the bellfioat of the governor, theapparatus maybe made to work by loading the float as shown in Fig. 6.The arm a", projecting upwardlyfrom the scale-beam c, is connected withthe movable weight b by the rod 6. This weight moves upon the lever I),suitably pivoted, and the pressure upon the bell-float is greater orless as the weight is farther from or nearer to the fulcrum of thelever. It will be seen by this arrangement that the gas-consumersregulate the pressure of gas in the mains. It will be understood that ina well-regulated gas making and distributing apparatus the pressore ofgas in the 'supplymains should be adequate to the consumptiomand as theconsumption increases or diminishes this pressure should increase anddiminish with it. As the consumption inorea-ses,the currentin the mainsincreases in velocity, and this increasing and diminishing velocity Iutilize to increase and diminish the load upon the governor. As thisload is increased,an increased pressure of gas in the mains is requiredto close the valves; hence as the consumption varies so will vary thecurrent.

What Iclaim, and desire to secure by Letters Patent, is

1. In a gas-pressure-governing apparatus, a governor-float, as B, andmeans for loading the float actuated and controlled by the current ofgas.

2. In a gas-pressure-governing apparatus, a governor-float, as B, andmeans for loading the same, in combination with a device for actuatingthe load interposed in the gas-current and operated thereby.

3. In agas-pressure-governing apparatus, a governor-float and means forloading said float, in combination with an actuating device interposedin the gas-current, the pivoted lever a, connected with the actuatingdevice and operated thereby, and with the means for loading the float.

4. In a gaspressure-governing apparatus, a governor-float, as B, andmeans for loading said float, in combination with a scale and pointer toindicate the volume of gas passing through the mains.

5. In a gaspressure-governing apparatus, a governorfloat, as B, andmeans for loading said float, in combination with a device for actuatingthe load interposed in the gas-current and operated thereby,and a devicefor indicating the volume of gaspassing through the meme.

6. In a gaspressure-governing apparatus, two governor-floats, as B andd, the former arranged to regulate the pressure of gas in thedistributingunain and the latter arranged to supply and out OK the loadupon B, and automatically operated by the current of gas in thedistributing-main.

7. In a gaspres'sure-governing apparatus,an actuating device inserted inthe gas'distributing main and operated by the current, in corn binationwith a governor, as-D, and governorfloat, as d, and a pivoted leverconnected with the loading device of the governor and the actuatingdevice in the gas-current, substantially as described.

8. In a gaspressure-governing apparatus,a governor, as D, provided witha float, a movable weight upon said float, in combination with a leveractuated by the gas-current to move the weight, and acounterbalanclngweight on the end of the lever operating ver-r ticallyin a column of water, substantially as described.

9. In a gas-pressure-governing apparatus, a governor, as I), providedwith a float, as d, an adjustable weight upon said float connected withan operating-lever, the lever actuated by means controlled by thegas-current, in combination with a series of counteracting-weightsarranged to be picked up by said lever as the pressure is increased uponthe governor'float and discarded as said pressure is diminished.

10. In a gas-pressure governing apparatus, a governor, as I), providedwith a float, an adjustable weight upon said float connected with anoperating-lever,the lever actuated by means controlled by thegas-current, in combination with a weight arranged to move vertically ina column of water to counteract the movement of the lever, and a valveactuated by the governor-float and located in position to open or closean outlet of gas from the distributingmain, substantially as described.

11. In a gas-pressure-governing apparatus, a governor, D,provided with afloat, an adjustable weight upon said float connected with anoperatinglev er, the lever actuated by means controlled by thegas-current in the distributingmain, in combination with aretarding-weight connected with said lever and moving vertically in acolumn of water, and a series of counteracting-weights arranged to becaught up and held by said lever as the pressure is increased upon thefloat and discarded as the pressure is diminished, substantially asdescribed.

FRANCIS H. HAMBLETON.

